Lykov A.N. , Prishchepa S.L. , Maritato L.. , Attanasio C.. , Salvato M.. , Zhdanovitch S.V. Spatially nonlinear pinning potential in BSCCO films. World Scientific/ ed.H.W.Weber , с. P.280-283 Lykov A.N. , Prishchepa S.L. , Maritato L.. , Zhdanovitch S.V. Pinning potential transport measurements of Bi_2Sr_2CaCu_2O_x thin films. Intern. Workshop on Superconductivity. Kyoto,Japan, 1994. Proc. , с. P.192-193